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Tag: "means" at biology news

FDA sees nanotech challenges in every product category it regulates

...al that FDA—and other regulatory agencies—have the means necessary to evaluate which nanomaterials are harmful and which are not. This is an issue that Congressional leaders from both parties have called on the federal government to address urgently,” said Maynard....

Soils offer new hope as carbon sink

...very year for decades. "For the environment, it means soil carbon emissions can be reduced because rapidly decomposing carbon forms are being replaced by stable ones in the form of agrichar." Unfortunately, agrichar is not widely available. BEST Energies Australia, a company involved with NSW DPI in ...

How sneaky HIV escapes cells

...n membrane-bound molecules to the outside world by means of small sacs known as exosomes. By studying human T-cells under a microscope, Gould, Yi Fang, Ning Wu, and other members of his team discovered what’s needed to qualify proteins for exosomal travel. “Surprisingly, all that’s needed for a protein ...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...atologist at the Royal Victoria Hospital. “This means that our results are less likely to be affected by different skin tones and ethnic origin than research carried out in countries with a greater ethnic mix.” The authors point out that the general increase in incidences of skin cancer, coupled with...

U-M researchers discover gene switched off in cancer can be turned on

... a high likelihood of response. Their low toxicity means the patient can be treated for long periods of time, which is unlike older and more traditional chemotherapy agents. Even if these new targeted therapies don’t cure the cancer, we can at least have long-term survival,” he adds. ...

Now, self-healing materials can mimic human skin, healing again and again

... “The vascular nature of this new supply system means minor damage to the same location can be healed repeatedly,” said Sottos, who also is a researcher at the university’s Beckman Institute. In the researchers’ original approach, self-healing materials consisted of a microencapsulated healing agent a...

Migration alert -- How tumor cells home in on the lymphatic system

...d, tumor cells would be less attracted to it. This means that tumor cells “know” which lymphatic vessels will be more effective routes for dissemination,” she explains. “Therapeutically, it indicates that a drug target for lymph node metastases could be blocking the signaling molecule or its receptor on t...

Newly discovered antibody may be body's natural defense against Alzheimer's

...ologist and study co-author, Dr. Paul Szabo. "That means that even though beta amyloid monomers and oligomers have the same fundamental chemical makeup, human anti-oligomer antibodies can distinguish between them. The antibodies recognize a particular shape that proteins assume only when they become these...

Physicist cracks women's random but always lucky choice of X chromosome

...hromosome but females have two X chromosomes. This means that in an early stage in the development of a wom...does give an evolutionary advantage. The mechanism means equal numbers of both the maternal and paternal X chromosome are preserved in the gene pool and the ...

Progress toward an antitumor vaccine

...ystem, to battle cancer" In principle, by the same means used against infectious diseases: immunization. Th...ne is anchored to an immunizing carrier protein by means of a spacer,” explains Kunz. This would be very easy to accomplish with polysaccharides, but turns o...

Could fungal collection hold the key to new life-saving drugs?

... using biotechnology to develop new drugs is by no means simple, the industry has seen steady success over the past few years. Between 2000 and 2005, over 20 new drugs were released onto the market originating from natural sources. And although this is the first time SIDR has worked with fungal cultures, t...

Herpes virus hijacks DNA repair process

...han a passive cellular response to viral invasion, means that we should look into whether other DNA viruses use a similar approach to enhance their growth," says Virgin. ...

Runners -- Let thirst be your guide

...durance exerciser whose AVP levels are on the rise means that some of the ingested water will be retained, and that excess water can dangerously dilute the level of sodium in the blood that is needed for organs to function, he adds. Investigators have been researching the triggers that stimulate AVP sec...

Mutating the entire genome

...manipulations in mouse embryonic stem cells, which means those cells are less likely to yield mice with the desired stretch of DNA disabled, Capecchi says. To quickly, cheaply mutate genes or none-gene DNA, Wu and Capecchi used short pieces of DNA known as loxP. Pieces of loxP act like signposts saying...

Male circumcision overstated as prevention tool against AIDS

...tutes in Africa sleep with five men in a week that means they are subjecting 35% of the country’s male population to the virus weekly. The virus is not easy to transmit heterosexually, b ut over time with multiple exposures, infection is inevitable. These men then act as a conduit to bring the virus home t...

Experts predict Tamiflu could halve the pandemic influenza death toll versus no intervention

...tivirals or vaccines Vaccination is the primary means of preventing influenza. However, at the beginning of a pandemic, supplies of vaccines which are fully matched to the pandemic strain will be limited or non-existent. This is because vaccine production can only start once the specific pandemic virus ...

How plague-causing bacteria disarm host defense

...ctive strategies for preventing disease, including means to fight antibiotic-resistant strains of Yersinia that could be used in biological warfare, according to Navarro. The genus Yersinia includes three species of bacteria that are pathogenic to humans: Y. pestis is perhaps the most infamous, being ...

Skimmed milk -- Straight from the cow

...omorowski. Producing skimmed and semi-skimmed milk means there is a lot of fat left over. Komorowski noted, however, that although the lower-fat milk may be healthier, it will be interesting to see how much milk the cows actually produce. The rogue cows were discovered when biotech company ViaLacti...

Mule deer moms rescue other fawns

...ence of a female's own offspring, even though this means the female invests time and energy and puts herself at risk by helping many other animals. In contrast, a whitetail mother waits to assess whether a fawn is her own before she steps in to defend it. As a result, whitetail fawns suffer considerably mo...

Lessons from the orangutans: Upright walking may have begun in the trees

...is one of the study's authors. "If we're right, it means you can't rely on bipedalism to tell whether you're looking at a human or other ape ancestor. It's been getting more and more difficult for us to say what's a human and what's an ape, and our work makes that much more the case." Crompton and his c...

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